dr. peter salgo. and you've already met our special guests who are joining our primary care physician, dr. lisa harris. lisa, it's good to see you back. (dr. lisa harris) good to see you, peter. (peter) now nobody on this team knows this case and i'm going to get right to work. let me tell you a little bit about elaine. elaine is fifty-six years old and she's been a smoker for thirty years. three years ago, elaine went to her primary care physician, lisa, and she had the following symptoms. she said, i'm short of breath with even small amounts of activity. i've got trouble climbing stairs. i have to stop and catch my breath. i'm coughing all day long. i wake up at night coughing. now i'm coughing up sputum she says, especially in the morning and its increasing and i can't seem to clear it. she's 5'6" and 128 pounds. her blood pressure is 138/74. her pulse is 98. her respiratory rate is 24. and when her doctor listens to her chest the description here is course rales and scattered wheezing. what are ra